Soluble silicon nanoparticles–polyaniline capsules for biosensing and imaging
Document Type
Article
Publication Date
1-1-2013
Publication Title
Journal of Materials Research
Abstract
We used miniemulsion to synthesize novel water-soluble dispersion of nanocapsules with a polyaniline (PANI) shell and luminescent ultrasmall Si nanoparticle core with diameters of 50–300 nm. The capsules are functionalized with aromatic sulfonic acid. The capsules may be reconstituted in thin films or structured surfaces. The stability of the luminescence and dispersion of the capsules is studied under a wide range of pH conditions. The multiplicity of nanoparticles in the core provides highly amplified and reproducible signal for luminescence-based imaging using standard fluorescence microscopy, while the PANI shell allows a variety of routes for functionalization as well as electrical interrogation, which enables a wide range of biosensing/imaging applications.
Repository Citation
Elhalawany, Noha; Maximenko, Yulia; Yamani, Zain; Yau, Siu-Tung; and Nayfeh, Munir H., "Soluble silicon nanoparticles–polyaniline capsules for biosensing and imaging" (2013). Electrical and Computer Engineering Faculty Publications. 273.
https://engagedscholarship.csuohio.edu/enece_facpub/273
Article Number
Cambridge
DOI
10.1557/jmr.2012.325
Volume
28
Issue
2
